Since you are using CS5.5, it likely isn't able to open it directly because you only have a 32bit decoder for this (you need 64bit decoders in order to open encoded files in CS5 and higher).My suggestion would be to convert it to a lossless format, such as utvideo, with virtualdub, through an avisynth script.If you don't have it, grab QTSource and place the dll inside the zip in your avisynth plugins folder.Next, write the following line of code in an avisynth script:

Well, then I guess that QuickTime is missing a XDCAM EX decoder (which shouldn't be surprising after all...).Grab this, and you should be able to use it directly to convert the file.Since I don't have any xdcam ex files at hand, if you could upload your file somewhere so I can guide you further it would be better, otherwise you can try to do it on your own. Sadly that sofware lacks support for many formats and you wouldn't be able to directly transcode it to a lossless format, however, you might just be able to do File > Export > MXF for NLE (which should be just a remux and not a re-encode), as according to this it should be supported starting premiere pro cs3.

So it appears that the XDCAM Browser wasn't able to open it.QTInput does indeed just give green junk.Amusingly enough, though, FFVideoSource was able to load it (I had checked the list of supported formats and didn't see xdcam and called it a day, at first). I didn't think it would support it. DSS2 and DirectShowSource also worked, so it seems I do have a directshow decoder for this, too.At that point I just tried opening the mov in mpc-hc and check which filter was doing the decoding under Play > Filter.MPEG-2 Video Decoder. Which means XDCAM EX is just a fancy name with a fancy fourcc for MPEG-2. Wikipedia seems to confirm. I should have just checked first. Hell, the mediainfo said it too. So you know what?

The best solution should be to open DGIndex and drag and drop the mov there. Then use the good ol' MPEG2Source to open the d2v. If that doesn't work, then just use FFVideoSource.

Well, DGIndex is the suggested solution for MPEG-2 because it's specifically thought for it, as it does a specific index, it will be surely frame accurate. The sample file you linked it, however, had an error midway through the stream, so I wasn't able to properly index it in its entirety . Either way, FFVideoSource is mighty fine too, since you're just transcoding it directly, and thus the avi you can save from vdub will be fine for editing. I'm more talking out of what I'm used to for MPEG-2 than anything, so feel free to use FFVideoSource.

And you'll be able to do file > save as wav from vdub (or you can just have it muxed as pcm when encoding the avi). Feel free to do whichever suits to your taste. The audio has yet another fancy fourcc for a simple pcm, so you won't have any loss.